Machinery's Handbook, 31st Edition
1032 Standard Tapers V-Flange Tool Shanks and Retention Knobs.— Dimensions of ANSI/ASME B5.18-1972 (R2014) standard tool shanks and corresponding spindle noses are detailed on pages 1027 through 1030 , and are suitable for spindles used in milling and associated ma- chines. Corresponding equipment for higher-precision numerically controlled machines, using retention knobs instead of drawbars, is usually made to the ANSI/ASME B5.50- 2015 standard. Essential Dimensions of V-Flange Tool Shanks ANSI/ASME B5.50-2015
No Alterations to M
B
P
D
C
0.002 A
0.002 A
A
V M G
T S
E
H
30 deg
N rad
0.375 dia. 0.015 DP.
– A –
0.002
A
7:24
F
– B –
60 deg. ± 15 deg.
0.005 A 0.002 A
U
L Both Sides A 0.005
R over 0.2813 pins
R 0.020 + 0.000 – 0.005
Z
X W
J K
B 0.005
Y
A
B
C D E
F
G
H
J
K
+0.000 - 0.015
Tolerance ±0.005 ±0.010 Min. + 0.015
+0.000 - 0.015
- 0.000 UNC 2B ±0.010 ±0.002
Size Gage Dia. 30 1.250
1.875 0.188 1.00 0.516 0.500-13 1.531 1.812 0.735 0.640 2.687 0.188 1.12 0.641 0.625-11 2.219 2.500 0.985 0.890 3.250 0.188 1.50 0.766 0.750-10 2.969 3.250 1.235 1.140 4.000 0.250 1.75 1.031 1.000-8 3.594 3.875 1.485 1.390 6.375 0.312 2.25 1.281 1.250-7 5.219 5.500 2.235 2.140
40 45 50 60
1.750 2.250 2.750 4.250
A
L
M N
P
R
S
T
Z
+0.000 - 0.005
Tolerance ±0.001 Max.
±0.010 Min.
±0.002 ±0.010 Min.
Size Gage Dia. 30 1.250
0.645 0.645 0.770 1.020
1.812 2.500 3.250 3.875 5.500
0.020 0.040 0.040 0.040 0.040
1.38 1.38 1.38 1.38
2.176 2.863 3.613 4.238 5.863
0.590 0.720 0.850 1.125 1.375
0.652 0.880 1.233 1.427 2.309
1.250 1.750 2.250 2.750
40 45 50 60
1.750 2.250 2.750 4.250
1.020 4.250 Notes: Taper tolerance to be 0.001 in. in 12 in. applied in direction that increases rate of taper. Geometric dimensions symbols are to ASME Y14.5-2018. Dimensions are in inches. Deburr all sharp edges. Unspecified fillets and radii to be 0.03 ± 0.010 R , or 0.03 ± 0.010 × 45 degrees. Data for size 60 are not part of Standard. For all sizes, the values for dimensions U (tol. ± 0.005) are 0.579: for V (tol. ± 0.010), 0.440; for W (tol. ± 0.002), 0.625; for X (tol. ± 0.005), 0.152; and for Y (tol. ± 0.002), 0.750. 1.500
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